公开(公告)号：US3575521A

公开(公告)日：1971-04-20

申请号：US3575521D

申请日：1968-11-05

Applicant: GORMAN RUPP CO

Inventor： PORTER ROBERT J ,  MCFARLIN STANLEY B

IPC: F04D9/00 ,  F16K15/00 ,  F16T1/20

CPC classification number: F04D9/006 ,  F04D9/00 ,  Y10T137/3084 ,  Y10T137/7885

Abstract: An automatic air release valve is connected to the discharge side of a self-priming centrifugal pump for venting air from the pumping system during the priming cycle. The valve automatically closes upon completion of the priming cycle to prevent of liquid during the pumping cycle.

公开(公告)号：US3447810A

公开(公告)日：1969-06-03

申请号：US3447810D

申请日：1965-10-07

Applicant: GORMAN RUPP CO

Inventor： PORTER ROBERT J

IPC: F16J15/36 ,  F16J15/34 ,  F16J15/38

CPC classification number: F16J15/366 ,  F16J15/36 ,  Y10S277/91